Louie-USC111006 - The Nevada Seismological Laboratory
... SeisOpt iterates through hundreds of thousands of possible velocity solutions to find the single, or “global”, solution that best fits the seismic data, assuming no direction or magnitude of velocity gradient. ...
... SeisOpt iterates through hundreds of thousands of possible velocity solutions to find the single, or “global”, solution that best fits the seismic data, assuming no direction or magnitude of velocity gradient. ...
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... fits a gravity maximum at 360 km that is not apparent on the magnetic profile. We assume that the source is within the volcanic rifted margin, but it may be caused by positive density contrasts in the sedimentary units above the volcanic rifted margin, e.g., younger volcanic rocks that are known fro ...
... fits a gravity maximum at 360 km that is not apparent on the magnetic profile. We assume that the source is within the volcanic rifted margin, but it may be caused by positive density contrasts in the sedimentary units above the volcanic rifted margin, e.g., younger volcanic rocks that are known fro ...
Evaluates: MAX3941 MAX3941 Evaluation Kit _________________General Description _____________________________Features
... Warning: The data and clock inputs (DATA±, CLK±) are DC-coupled to the SMA connectors, so be sure to set proper common-mode voltages for these inputs. The combination bias and modulation output (OUT) is also DCcoupled to the SMA connector and requires a 50Ω to ...
... Warning: The data and clock inputs (DATA±, CLK±) are DC-coupled to the SMA connectors, so be sure to set proper common-mode voltages for these inputs. The combination bias and modulation output (OUT) is also DCcoupled to the SMA connector and requires a 50Ω to ...
Locating the Epicenter (modified for ADEED)
... of the quake, and will indicate the same location for the epicenter. The circles drawn around the seismic stations would center over different locations, but the point at which all three circles intersect would be the same. ...
... of the quake, and will indicate the same location for the epicenter. The circles drawn around the seismic stations would center over different locations, but the point at which all three circles intersect would be the same. ...
The Bouguer gravity map of the Mediterranean Sea
... km, an average velocity of 6.7 km/s and a density of 2.9 g/cm3. The Eratosthenes Seamount, on the other hand, is a continental fragment with a thickness of 24 km covered by relatively thin Mesozoic sediments, and has a prominent gravity expression (Makris and Wang, 1994). To the north, this broad an ...
... km, an average velocity of 6.7 km/s and a density of 2.9 g/cm3. The Eratosthenes Seamount, on the other hand, is a continental fragment with a thickness of 24 km covered by relatively thin Mesozoic sediments, and has a prominent gravity expression (Makris and Wang, 1994). To the north, this broad an ...
seismic potential associated with subduction in the northwestern
... subduction zone has been ignored in the studies that established these differences. The Juan de Fuca subduction zone has been considered somewhat anomalous because there has been virtually no shallow thrust seismicity of the type we usually associate with active subduction zones. There are several p ...
... subduction zone has been ignored in the studies that established these differences. The Juan de Fuca subduction zone has been considered somewhat anomalous because there has been virtually no shallow thrust seismicity of the type we usually associate with active subduction zones. There are several p ...
body waves tomography from obs-recorded earthquakes
... ABSTRACT The gulf of Cadiz is a region considered as a complex seismic area, where strong earthquakes occur and where the plate boundary between the African and Eurasian plates is not exactly known. we use high resolution seismic data recorded by a network of ocean bottom seismometers stations in th ...
... ABSTRACT The gulf of Cadiz is a region considered as a complex seismic area, where strong earthquakes occur and where the plate boundary between the African and Eurasian plates is not exactly known. we use high resolution seismic data recorded by a network of ocean bottom seismometers stations in th ...
S-Velocity Structure of the Upper Mantle
... Anatolia, a part of the Alpine-Himalayan orogenic belt, is shaped by a variety of complex tectonic processes that define the major tectonic provinces across which different deformation regimes exist. In order to study the deeper lithosphere and mantle structure beneath Anatolia, we used teleseismic ...
... Anatolia, a part of the Alpine-Himalayan orogenic belt, is shaped by a variety of complex tectonic processes that define the major tectonic provinces across which different deformation regimes exist. In order to study the deeper lithosphere and mantle structure beneath Anatolia, we used teleseismic ...
Rupture Characteristics of the Deep Bolivian Earthquake of 9 June
... parallel to the inferred slab. Second, for this geometry the maximum compressive stress direction as inferred from the source mechanism of the Bolivian earthquake is downdip, the orientation most often found for deep focus events (19). The horizontal extent of the Bolivian earthquake is at least 50 ...
... parallel to the inferred slab. Second, for this geometry the maximum compressive stress direction as inferred from the source mechanism of the Bolivian earthquake is downdip, the orientation most often found for deep focus events (19). The horizontal extent of the Bolivian earthquake is at least 50 ...
The Cancer Information Service - National Cancer Intelligence
... We continue to develop the UK-CIS further. Over the next year it is intended to present data for the constituent areas within Wales, revised the calculation of the confidence intervals and also to present the mortality data indexed by registered year of death. In addition, future data submissions to ...
... We continue to develop the UK-CIS further. Over the next year it is intended to present data for the constituent areas within Wales, revised the calculation of the confidence intervals and also to present the mortality data indexed by registered year of death. In addition, future data submissions to ...
Speculations on the Consequences and Causes of Plate Motions*
... It is therefore clear from this work on plate theory that the lithosphere is consumed asymmetrically by island arcs, and it is the purpose of this paper to discuss the consequences of this destruction. Certain features of island arcs are related in a general way to the consumption of lithosphere. Th ...
... It is therefore clear from this work on plate theory that the lithosphere is consumed asymmetrically by island arcs, and it is the purpose of this paper to discuss the consequences of this destruction. Certain features of island arcs are related in a general way to the consumption of lithosphere. Th ...
Propagation of surface uplift, lower crustal flow, and Cenozoic
... likely the result of local drainage reorganization driven by displacement on strike-slip faults. Climate change is also an unlikely cause, as the Asian monsoon may have initiated significantly earlier than river incision in this region (ca. 16 Ma; Clift et al., 2002). Furthermore, if incision is tri ...
... likely the result of local drainage reorganization driven by displacement on strike-slip faults. Climate change is also an unlikely cause, as the Asian monsoon may have initiated significantly earlier than river incision in this region (ca. 16 Ma; Clift et al., 2002). Furthermore, if incision is tri ...
Seismic refraction evidence for steep faults cutting highly
... seismic structure model resolves several well-mapped faults, which include the Pelona, San Francisquito, Clearwater and San Andreas faults. Each of these faults is known to cut basement and to juxtapose fundamentally different rock types at the surface of the Earth. The 2-D structure model places co ...
... seismic structure model resolves several well-mapped faults, which include the Pelona, San Francisquito, Clearwater and San Andreas faults. Each of these faults is known to cut basement and to juxtapose fundamentally different rock types at the surface of the Earth. The 2-D structure model places co ...
Origin and evolution of the lower crust in magmatic arcs and
... Talkeetna crust resulted in the replacement of dense mafic and ultramafic cumulates by residual upper mantle, producing a sharp seismic discontinuity at depths of around 38 to 42 km, characteristic of the continental Moho. Dynamic calculations indicate that foundering is an episodic process that oc ...
... Talkeetna crust resulted in the replacement of dense mafic and ultramafic cumulates by residual upper mantle, producing a sharp seismic discontinuity at depths of around 38 to 42 km, characteristic of the continental Moho. Dynamic calculations indicate that foundering is an episodic process that oc ...
hal-insu.archives-ouvertes.fr - HAL
... et al. 2010) (Figure 1c). Several strike-slip fault zones, which arrange from the convergent domain north of Tibet, such as the Altyn-Tagh Fault, to the extensional domain east and south of it, such as the Red River Fault (RRF), accommodate the majority of this motion (e.g., Molnar & Tapponnier 1975 ...
... et al. 2010) (Figure 1c). Several strike-slip fault zones, which arrange from the convergent domain north of Tibet, such as the Altyn-Tagh Fault, to the extensional domain east and south of it, such as the Red River Fault (RRF), accommodate the majority of this motion (e.g., Molnar & Tapponnier 1975 ...
12. Interpretation of Multichannel Seismic Reflection Data, Legs 56
... Studies of convergent margin tectonics along the Japan Trench Transect are based on geophysical as well as on drill and conventional sampling data. The large number of geophysical and geological studies in the 1960's made this area an attractive target for convergent margin drill core sampling. Once ...
... Studies of convergent margin tectonics along the Japan Trench Transect are based on geophysical as well as on drill and conventional sampling data. The large number of geophysical and geological studies in the 1960's made this area an attractive target for convergent margin drill core sampling. Once ...
35. Interpretation of Seismic-Reflection Data of the Middle America
... Guatemala, together with published well information from the outer shelf and Leg 67 drilling results from the toe of the slope indicate that imbricate slices of oceanic crust were emplaced in the landward slope offshore Guatemala in the Paleocene or early Eocene. Since that time, sediment apparently ...
... Guatemala, together with published well information from the outer shelf and Leg 67 drilling results from the toe of the slope indicate that imbricate slices of oceanic crust were emplaced in the landward slope offshore Guatemala in the Paleocene or early Eocene. Since that time, sediment apparently ...
On the detectability of 3-D postperovskite distribution in Dв€і by
... inducing secondary electric currents in the deepest regions of the Earth, including the core (Velímský and Finlay, 2011). The magnetic field generated by the ring current has dominantly dipolar structure in the geomagnetic coordinate system defined by the Earth’s main field, although smaller non-axisy ...
... inducing secondary electric currents in the deepest regions of the Earth, including the core (Velímský and Finlay, 2011). The magnetic field generated by the ring current has dominantly dipolar structure in the geomagnetic coordinate system defined by the Earth’s main field, although smaller non-axisy ...
Bachelor Degree in Geological Sciences
... shear, simple shear, strain and geological structures. Progressive deformation: en echelon set of veins (tension gashes), sintaxial and antitaxial growing fibres, pressure shadows. Measuring the strain. Heterogeneous strain, 3D-strain. Folds: terminology, elements of fold style, anatomy, morphology. ...
... shear, simple shear, strain and geological structures. Progressive deformation: en echelon set of veins (tension gashes), sintaxial and antitaxial growing fibres, pressure shadows. Measuring the strain. Heterogeneous strain, 3D-strain. Folds: terminology, elements of fold style, anatomy, morphology. ...
Thermal and mechanical structure of the central Iberian Peninsula
... The central Iberian Peninsula (Spain) is made up of three main tectonic units: a mountain range, the Spanish Central System and two Tertiary basins (those of the rivers Duero and Tajo). These units are the result of widespread foreland deformation of the Iberian plate interior in response to Alpine ...
... The central Iberian Peninsula (Spain) is made up of three main tectonic units: a mountain range, the Spanish Central System and two Tertiary basins (those of the rivers Duero and Tajo). These units are the result of widespread foreland deformation of the Iberian plate interior in response to Alpine ...
Contractional theory, continental drift and plate tectonics - Perso-sdt
... dynamic areas in the world and are the locations of most orogeneses, a word from the classical Greek meaning mountain building. The concepts embraced above define the field of geodynamics – energy, forces, and motion of a changing Planet Earth; mountains are the most obvious results of this system. ...
... dynamic areas in the world and are the locations of most orogeneses, a word from the classical Greek meaning mountain building. The concepts embraced above define the field of geodynamics – energy, forces, and motion of a changing Planet Earth; mountains are the most obvious results of this system. ...
Forty years of MTS studies in the Ukraine Alexander I. Ingerov
... show a place in the Ukraine where crustal conductor is definitely absent. The lowerst conductivity of the crust is seen in the Near-Dnieper block where slight inflection of ascending MTS curves can be interpreted as the manifestation of a conductor of total conductivity as small as several Siemens ( ...
... show a place in the Ukraine where crustal conductor is definitely absent. The lowerst conductivity of the crust is seen in the Near-Dnieper block where slight inflection of ascending MTS curves can be interpreted as the manifestation of a conductor of total conductivity as small as several Siemens ( ...
Structural evolution of the Triangle Zone in the central Alberta Foothills
... Geometry of structures in the initiation, development and abandonment stages of the Triangle Zone reveal much about the evolution of the Triangle Zone as well as the fold - thrust belt as a whole. This integrated study involved mapping of surface geology, interpreting seismic and well data, integrat ...
... Geometry of structures in the initiation, development and abandonment stages of the Triangle Zone reveal much about the evolution of the Triangle Zone as well as the fold - thrust belt as a whole. This integrated study involved mapping of surface geology, interpreting seismic and well data, integrat ...
Earthscope
Earthscope is an earth science program using geological and geophysical techniques to explore the structure and evolution of the North American continent and to understand the processes controlling earthquakes and volcanoes. The project has three components: USARRAY, the Plate Boundary Observatory, and the San Andreas Fault Observatory at Depth.The project is funded by the National Science Foundation (NSF), and the data produced is publicly accessible in real-time. Organizations associated with the project include UNAVCO, the Incorporated Research Institutions for Seismology (IRIS), Stanford University, the United States Geological Survey (USGS) and National Aeronautics and Space Administration (NASA). Several international organizations also contribute to the initiative.